
#ifndef CALCULATOR_H
#define CALCULATOR_H

typedef struct Calculator Calculator;

struct Calculator
{
	double _OperandLeft;
	double _OperandRight;

	double _Result;
};

void Calculator_Input(Calculator *pSelf, double dblOperandLeft, double dblOperandRight);
void Calculator_Add(Calculator *pSelf);
void Calculator_Substract(Calculator *pSelf);
void Calculator_Output(Calculator *pSelf);

#endif // !CALCULATOR_H

